Dedicated to providing clean water to those in need, and with World Water Day this month, Damon, a co-founder of Water.org, says, "I have four girls of my own, and I want them to be proud of the impact I'm making in the world."

The Monuments Men and Behind the Candelabra star, 43, helped start the organization as a response to the poverty he encountered during his travels a decade ago.

"I just can't think of a cause that has a larger impact than access to safe drinking water and basic sanitation – especially for women and girls," he says.

"I'm looking forward to sharing the work with my family. I think it's a really valuable opportunity to learn and curate your own passions for giving back at an early age."

As for what he observed firsthand, "When I was in Zambia in the early 2000s, I was learning about some of the challenges of development and went on a water collection with a young girl in a village I was visiting," he says.

"When I asked her about her hopes and plans, she said she was going to go and live in the big city and become a nurse … I realized that if someone had not possessed the foresight to sink a bore well near where she lived, she wouldn't have been able to go to school and she would have spent her whole life scavenging for water."